Jay and Jeff were recording the class weather data each day in March. This particular morning, they used the sling psychrometer seen here. What kind of weather data did they record with the sling psychromter?

Tiny plastic pellets, like the pellets in the image, enter marine ecosystems through accidental spillage or by the decomposition of plastic wastes.

How do these pellets affect marine ecosystems?

Without the Sun, the planets would travel in a straight line. This fact represents Newton's law of _____________: an object stays in motion unless an outside force acts on it.

Which statement BEST hypothesizes the evolutionary history of the area shown?

Day and night are the result of the earth's rotation on its own axis and its location from the sun. As the earth spins on its axis, parts of the planet are in the sun while others are in the dark. In other words, the sun appears to rise and set. The parts of the world that are in daylight get warmer while the parts that are dark gradually lose the heat they absorbed during the day.

What fractions of the earth are in day and night at any time?

Most clouds appear here, mainly because 99% of the water vapor in the atmosphere is found in the:

This map shows the pH levels in rain throughout the United States. We would expect to see the MOST damage to evergreen trees in which area of the United States?

Any collection of things that have some influence on one another can be thought of as a system. When we talk about a system, we are also talking about all the parts that should be included, how those parts interact with one another, and to how the system as a whole relates to other systems. We think of Earth as both an open and a closed system: energy enters and leaves (open system) but matter does not (closed system). Matter flows between reservoirs or sinks along pathways or fluxes.

There are three types of reservoirs in the lithospheric cycle: igneous, metamorphic and sedimentary rocks. Various processes, such as burial and melting, volcanism, or erosion move this material from one reservoir to another. The major process that drives the rock cycle is plate tectonics, the movement of Earth's crustal plates that is driven by convection currents of the magma within the Earth itself.

Students are investigating the types of rocks found in various locations throughout California, the state where they live and attend school. What hypothesis might the students formulate to guide their research on rock formation, given that they live in California?

A hurricane is MOST LIKLEY to occur in an area

What is the best explanation of what happens during a solar eclipse?

Magnetic fields are produced by the motion of electrical charges. The motion of negatively charged electrons create the magnetic field in a bar magnet. The origin of the Earth's magnetic field is not completely understood. It is thought to be associated with electrical currents produced from the coupling convective effects and rotation of the spinning outer core of metallic liquid made of iron and nickel.

What does the Earth's magnetic field shield Earth from?

Over the past several years, the amount of carbon dioxide in the atmosphere has increased. With more carbon dioxide in the atmosphere, more heat is absorbed and retained causing an increase in global temperatures.. What can you infer could be a future threat as a result of this increased temperature?

Massive objects in the solar system, such as black holes, create large __________________ fields that warp space time and cause rays of light to bend strangely.

Wind energy is currently being used in the production of electricity. One way is through the use of windmills. What is the main advantage of using windmills?

Building a dam to produce hydroelectric power is one way to take advantage of a common renewable resource. This produces much less pollution than a coal burning plant. However, building dams is not a perfect solution.

What is one problem related to dams?

The yellow circle represents the sun. If you were standing on the blue circle (Earth) and looking up at the moon, you would be seeing the _________ moon.

Oil spills have many negative effects on the environment, including harming animals. Dispersing is one method used by engineers to clean ocean oil spills. Formulate the best description of this method.

This process can be harmful to surface plants and animals, so it is not done near shorelines.

In the ocean, what is a landform similar to a valley known as?

As the world population continues to grow, scientists have designed methods of monitoring and reducing human impacts on the environment. One example is the use of dams, like the Hoover Dam seen here. The force of water running through the dam spins turbines that produce hydroelectric power. The Hoover Dam can produce enough electricity annually for over one people in Arizona, southern California, and southern Nevada. Water storage is another way the Hoover Dam reduces human impact, by reducing the need for groundwater drilling, and supplying water to millions of homes in the southwest U.S.

If the Hoover Dam were removed, what is a reasonable prediction of the most significant environmental impact?